Rick believes that a system he is responsible for has been compromised with malware that uses a rootkit to obtain and retain access to the system. When he runs a virus scan, the system doesn$$t show any malware. If he has other data that indicates the system is infected, what should his next step be if he wants to determine what malware may be on the system?

Group of answer choices

A$.$ Rerun the antimalware scan.

B$.$ Mount the drive on another system and scan it that way.

C$.$ Disable the systems antivirus because it may be causing a false negative.

D$.$ The system is not infected and he should move on$.$